For the purpose of this Chapter, the following definitions shall apply:
(1)'capital conservation buffer' means the own funds that an institution is required to maintain in accordance with Article 129;
(2)'institution-specific countercyclical capital buffer' means the own funds that an institution is required to maintain in accordance with Article 130;
(3)'G-SII buffer' means the own funds that are required to be maintained in accordance with Article 131(4);
(4)'O-SII buffer' means the own funds that may be required to be maintained in accordance with Article 131(5);
(5)'systemic risk buffer' means the own funds that an institution is or may be required to maintain in accordance with Article 133;
(6)'combined buffer requirement' means the total Common Equity Tier 1 capital required to meet the requirement for the capital conservation buffer extended by the following, as applicable:
(a)an institution-specific countercyclical capital buffer;
(b)a G-SII buffer;
(c)an O-SII buffer;
(d)a systemic risk buffer;
(7)'countercyclical buffer rate' means the rate that institutions must apply in order to calculate their institution-specific countercyclical capital buffer, and that is set in accordance with Article 136, Article 137 or by a relevant third-country authority, as the case may be;
(8)'domestically authorised institution' means an institution that has been authorised in the Member State for which a particular designated authority is responsible for setting the countercyclical buffer rate;
(9)'buffer guide' means a benchmark buffer rate calculated in accordance with Article 135(1).
This Chapter shall not apply to investment firms that are not authorised to provide the investment services listed in points 3 and 6 of Section A of Annex I to Directive 2004/39/EC.